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Valve opening and closing period control device

A technology of opening and closing period and control device, which is applied to valve devices, non-mechanically actuated valves, machines/engines, etc., can solve the problems of falling off of intermediate components and complicating the installation process of control devices, and achieve the effect of preventing falling off.

Inactive Publication Date: 2018-08-07
AISIN SEIKI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, after mounting the driven side rotating member and the intermediate member to the driving side rotating member, when the camshaft is mounted to the valve opening and closing timing control device, the intermediate member may easily come off from the inner periphery of the driven side rotating member
Therefore, the installation process of the valve opening and closing timing control device may be complicated

Method used

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  • Valve opening and closing period control device
  • Valve opening and closing period control device
  • Valve opening and closing period control device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] Embodiments of a valve opening and closing timing control device for controlling the opening and closing timing of an intake valve of an automobile engine will be described below with reference to the drawings.

[0034] refer to Figure 1 to Figure 7, the first embodiment of the valve opening and closing timing control device of the present invention will be described.

[0035] Such as figure 1 and figure 2 As shown, the valve opening and closing timing control device includes a driving side rotating member (casing) 1 and a driven side rotating member (inner rotor) 2 . The drive side rotary member 1 made of aluminum alloy rotates synchronously with the crankshaft of the automobile engine. The driven-side rotating member 2 made of aluminum alloy is provided inside the driving-side rotating member 1 so as to be coaxial with the driving-side rotating member 1 . The driven-side rotating member 2 rotates integrally with a camshaft 5 that opens and closes an intake valve...

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PUM

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Abstract

A valve opening and closing period control device, comprising: a driving-side rotating member (1); a driven-side rotating member (2); and a control valve (51), which rotates relative to the driving-side rotating member (2) The relative rotation phase of the member (1) controls the supply and discharge of the working fluid relative to the fluid pressure chambers (4, 41, 42); the intermediate member (6) is arranged between the driven side rotating member (2) and the camshaft ( 5) Between, the inner side of the driven side rotating member (2), the intermediate member (6) includes the control valve (51) on its inner side; the torsion spring (9), which is driven by the rotating member (1) and the middle The member (6) is held so that the driving side rotating member (1) and the driven side rotating member (2) are biased in the first rotational direction (S1) or the second rotational direction (S2).

Description

technical field [0001] The present invention generally relates to a valve opening and closing period control device. Background technique [0002] The known valve opening / closing timing control device preferably includes a driven-side rotating member formed of a lightweight material with low rotational inertia in order to easily change the relative rotational phase of the driven-side rotating member with respect to the driving-side rotating member. Therefore, the driven-side rotating member is generally formed of a low-strength material such as an aluminum material. On the other hand, a camshaft connected to a driven-side rotating member is generally formed of a high-strength material such as an iron material. Therefore, due to the difference between the linear expansion coefficient of the driven side rotating member and the camshaft, a gap is easily generated at the interface between the driven side rotating member and the camshaft. Along with this, since the high-strengt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01L1/34F01L9/02F01L9/10
CPCF01L1/3442F01L2001/34433F01L2001/34483F01L2001/34426
Inventor 山川芳明小林昌树
Owner AISIN SEIKI KK